Matt Doka

Co-Founder & CTO atOperator StackCalifornia

Matt Doka is a co-founder and general partner at Operator Stack. He previously served as the co-founder and CTO of Fivestars.

What Matt can write

Writes checks of$250K to $1M
Comes in atPre-seed, SeedMostly follows a lead
Ownership target< 5%, 5-7%At first check
Best routeA warm introAsk a founder in their portfolio.

Operator Stack writes $250K to $1M checks, larger than 33% of firms in the atlas.

Bars: how many firms report each check band. Highlighted: Operator Stack.

Career

  1. Fivestars · Co-Founder & CTO
  2. SumUp (North America) · CTO
  3. Operator Stack · Co-Founder & GP
    Now

Companies founded

FivestarsOperator Stack

Focus

Building (0 → 1)Tech InfrastructureGTM

Before you pitch

Operator Stack does not invest inHealthcare and biotech

Also at Operator Stack

Partners like Matt

At firms with a similar stage, sector and check size.

Alert me when Operator Stack is active

One email when Matt's firm raises a fund, adds a partner or shows new activity.

Founders and investors at a Mode VC gathering

Send Mode VC your deck

Raising a pre-seed or seed round? We write $1M to $5M first checks and help founders with distribution. A partner reads every deck.

Send your deck

Questions

Who is Matt Doka?

Matt Doka is a co-founder and general partner at Operator Stack. He previously served as the co-founder and CTO of Fivestars.

How much does Matt Doka invest?

Matt Doka invests through Operator Stack, which writes checks of $250K to $1M at pre-seed, seed.

How do I pitch Matt Doka?

A warm intro from a founder Operator Stack backed works best.

What did Matt Doka do before Operator Stack?

Co-Founder & CTO at Fivestars; CTO at SumUp (North America).

Last updated 2026-10-15. Is this you? Ask for a correction.